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I'm looking at picking up a set of Poncams for my RB25 and have come to a bit of a problem. I've got the choice of either Type A or Type B poncams but I don't know which one to go for. Can anyone offer me insight into the benefits/disadvantages of both and which would be a better choice?

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if this is for an R33 gtst like your details say

then you dopnt have type a or B

those are for the R34 NEO engine

you have the std type .. your case S1 poncam

or the PRO cam which requires the change to the solid buckets

as shown on thier website

http://www.tomei-p.co.jp/_2003web-catalogu...2_cam_RB25.html

you need S1 since the S2 engine they refer to is for sept 97 and later model engines

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Ah awesome, yeah, it's the car in my sig. I was gonna ask what ones I needed to buy as after Sept 97 they changed due to the CAS.

So if I do buy them, just go for the Series 1 poncams, correct? And no need to worry about types?

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Ah awesome, yeah, it's the car in my sig. I was gonna ask what ones I needed to buy as after Sept 97 they changed due to the CAS.

So if I do buy them, just go for the Series 1 poncams, correct? And no need to worry about types?

yeah only 1 type of poncam for that model

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